It would be great to see the kid in the g league, and his daddy following him there.
But from what i have seen, kid is not nba material, but still, someone might get him in the second round just for the revenue (like those chineese, japanesse, indian etc players).
may i ask which players specifically you are referring to?
next, lebron, i would assume, know that this helps his son get into the nba, for at least a few years. if it were just about playing with his son, he would not need to announce this, but instead just do it. by making this public it seems clear to me that he is helping his son.
with a year of lebron attached, his son has more value than before. i would also say that clubs close to winning a championship would be those most interested in adding lebron. if your club is a cellar dweller, the attraction of adding lebron for a year is less appealing.
but for a contender (maybe the celtics??!!

) Lebron might push them into real contention. if i am holding a first round pick in the 20 to 30 range, a year of lebron may very well look better than the pick.